Just so we're clear, Kameo characters as described on the website are effectively assist characters, which you can't actually play as.
So series staple Johnny Cage isn't going to be an actual playable character in this game, but guest characters Omni Man, Homelander and Peacekeeper are?
I mean sure, they can and probably will add Cage as a playable character later but why would you go out of your way to get him a Jean Claude Van Damn skin if he's not even a playable character?